Background
Water infrastructure planning in Cambodia links irrigation, flood management, and agricultural production because seasonal rainfall patterns create both water shortages and flood risks. In Cambodia, irrigation infrastructure supports dry-season agriculture by storing, diverting, and distributing surface water to farming areas. Flood-control irrigation systems reduce damage from seasonal floods while maintaining water availability for cultivation.
Integrated water resources management coordinates water allocation, flood control, irrigation, and watershed planning across administrative and river-basin boundaries. The Ministry of Water Resources and Meteorology is the central government institution responsible for water resources management and meteorological services in Cambodia. Development-financed water projects commonly require coordination between technical ministries, financing partners, and resettlement or impact-management authorities when project sites affect communities or land use.
Key Developments
On 6–7 May 2026, Van Chantho, Undersecretary of State at the Ministry of Water Resources and Meteorology and project director for the Integrated Water Resources Management project, led a delegation to inspect priority irrigation subproject locations in Pursat and Battambang provinces.
The delegation included mission representatives from the Asian Development Bank and the Asian Infrastructure Investment Bank, together with representatives of the General Department of Resettlement of the Ministry of Economy and Finance. The inspected sites included the Hong headworks structure across the Pursat River in Pursat provincial town, the Svay At flood-reduction irrigation system in Koh Chum commune, Kandieng district, Pursat province, the Kanghot irrigation subproject in Battambang province, and the Sangke River water management and Ou Sralau rehabilitation subproject in Battambang province.
Institutional Role
MOWRAM stated that the field inspection was intended to assess progress and determine next steps for strengthening water security and irrigation infrastructure. The ministry linked the subprojects to climate change response and agricultural modernization, indicating that the works are part of a broader water-management program rather than isolated construction activities.
The participation of ADB and AIIB reflects the role of development finance in Cambodia’s water infrastructure pipeline. The involvement of the Ministry of Economy and Finance’s GDR indicates that project preparation also includes assessment of potential social or land-related impacts within the government’s project implementation process.
Operational Implications
The IWRM project for 2025–2031 is financed by ADB and AIIB and is being implemented in Pursat and Battambang provinces. According to MOWRAM, the project aims to support sustainable water use for livelihoods and agricultural production.
The inspected subprojects are relevant to irrigation reliability, flood-risk reduction, and river water management in western Cambodia. Their implementation may affect how local water systems serve farming areas, manage seasonal flows, and support climate-resilient agricultural production.
